[Event "Chigorin Memorial-04"]
[Site "Sochi"]
[Date "1964.??.??"]
[Round "7"]
[White "Antoshin, Vladimir S"]
[Black "Krogius, Nikolai V"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Ba5 9. cxd5 exd5 10. dxc5 Bxc3 11. bxc3 Bg4 12. c4 Ne5 13. cxd5 Bxf3 14. gxf3 Qxd5 15. Be2 Qxc5 16. Bb2 Rad8 17. Bd4 Qc8 18. Qa4 Rd5 19. f4 b5 20. Qb3 Qh3 21. Bxe5 Ng4 22. Bxg4 Qxg4+ 23. Kh1 Qf3+ 24. Kg1 Qg4+ 1/2-1/2